exhaust X Pipe

[kglowacky]

Been wondering how important an X-pipe set up is on a LS swap. I have a LS1 swap out of a 02 Trans am and am running dual exhaust with no x pipe. Seems to run fine. What are the advantages or disadvantages of installing an X-pipe or is there any.

[87chevy.com]

Originally Posted by kglowacky

Been wondering how important an X-pipe set up is on a LS swap. I have a LS1 swap out of a 02 Trans am and am running dual exhaust with no x pipe. Seems to run fine. What are the advantages or disadvantages of installing an X-pipe or is there any.

I wouldn't use the word important, its about sound and fitment. the X pipe sounds different than H pipe and the true dual with no connection between each bank has a different sound aswell. Best bet youtube sound clips, but X pipes sounds more cleaner to me, H pipe has more popping tones to it, true dual pass..

if you are have the capability of welding it in yourself, buy both options and try it out.

[kglowacky]

not really going after any sound. I like the way it sounds right now. I was just wondering if these higher hp motors need the x pipe to balance the pressures. I want to make sure I am not damaging my motor long term.

[WorldsCrappiestTruck]

Not damaging anything. Send it.

I ran true dual on my swap because I knew getting the x or H to fit with my 4L60E (when I knew I’d be going to a T56) was going to be temporary. I also added 8” long Flowmaster cats right off the header to help with exhaust fumes.

Maybe someday I’ll try an x or H but for the time being, no.

[Joyridin]

The H pipe always made sense to me, but the X pipe doesn't in some applications. I was a 3" dual exhaust on a truck with an X pipe where the center of the X was roughly 3". If you are going to take 2 3" pipes and narrow them down to 1 3" pipe, why even bother going back to the dual 3" pipes after that point?